The Discovery Museums recently welcomed three new members to their board of directors: Katharine Denault of Acton; Carolyn Platt of Acton; and Margaret (Meg) Ramsey of Lincoln.

“We are thrilled to welcome Katharine, Carolyn and Meg to our board,” said Bill Ryan, board chair. “Together they bring a wealth of educational, community and nonprofit experience that will provide important perspective as we continue our work to expand Museum resources to serve more families, in ways that support children’s early development through informal learning.”

Denault began her involvement with the Museums when she moved to Acton in 1980, when she met the founder, Don Verger. She became a volunteer and has continued to be involved with the Museums since that time. Denault has also served on the parents associations of Nashoba Brooks School in Concord, Fenn School in Concord and Lawrence Academy in Groton.

She has volunteered at the Acton Food Pantry, served on the Emerson Hospital gala Committee and was a founding co-chair of the Nashoba Brooks Board of Visitors. Denault currently volunteers at the Concord Trinitarian Congregational Church and at the Littleton Oak Meadow Montessori library.

Platt was a founding Board member of The Discovery Museums, and served as Board chairwoman. She taught grades 2-6 for 35 years at Ecole Bilingue in Cambridge, the American School of Paris, Sudbury Public Schools and most recently the Carlisle Public Schools. She served as a consultant for the Lowell Model of Educational Excellence initiated by Paul Tsongas.

Platt has worked as a consultant for Primary Source in Watertown, an educational nonprofit that promotes history and humanities education by connecting educators with peoples and cultures around the world; led US teacher tours to China; and was co-editor of “China Since 1644: A History Through Primary Sources.” She volunteers at Church of the Good Shepherd in Acton and at Esperanza Academy in Lawrence, a tuition-free private middle school for girls.

Ramsey has been involved with The Discovery Museums for more than 15 years through the Ramsey McCluskey Family Foundation. The foundation has supported numerous science programs at the Museums.

Ramsey currently serves on the Belmont Day School Board of Trustees, the Foundation for MetroWest Board of Trustees, Youth in Philanthropy Advisory Board and as chairwoman of the Distribution Committee. She spent 12 years on the Lincoln Scholarship Committee, which she retired from as chairwoman.

Ramsey’s professional career includes working as a lead engineer at AT&T Bell Laboratories; adjunct professor of Computer Science at Rutgers University; a self-employed software process consultant; owner/manager of a commercial real estate venture; and founder and managing trustee of the Ramsey McCluskey Family Foundation.

Meg holds a bachelor’s degree in computer science from Drexel University, and a master’s degree in computer science and electrical engineering from the University of Pennsylvania.

The three join a board that has led the Museums through a successful 2013, a year in which almost 172,000 were served at the museums and in school classrooms throughout New England. An emphasis on reaching out to families that face financial, developmental or cultural barriers to visiting museums enabled more than 40,400 people — 24 percent of total visitors — to visit in 2013 at free or deeply reduced cost through the museums’ Open Door Connections program.